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Aquaponics Levels of pH to Avoid Plant SHUTDOWN

Aquaponics Levels of pH to Avoid Plant SHUTDOWN
– by Colle and Phyllis Davis

If the pH gets too near or above a certain range in your Portable Farms Aquaponics System, you plants cannot absorb the nutrients in the system and creates a NUTRIENT SHUTDOWN and your plants will begin to wither, show systems of leaf curl, begin to yellow, have stunted growth and not produce growth or blossoms. In effect, the plants are starving to death.

The Portable Farms® Aquaponics Systems are designed to accomplish this adjustment in an extremely easy manner. Checking the pH in your system at least a couple of times per week is vital, especially as the vegetables approach harvest time; this is an inexpensive process to increase production in the grow trays. This simple checking and adjustment will result in more bountiful harvests of healthy and nutritious produce.

Each plant has a preferred range of pH, or parts Hydrogen, that creates an ideal growing environment for the plant.

In aquaponics, this adjustment is very easily when the water flows through the system. To ‘increase’ the pH means to make the solution more alkaline and to ‘decrease’ the pH means to make the solution more acidic. There are quick and very inexpensive ways to change the pH of water in an aquaponics system.

If you are trying to grow vegetables with very different pH requirements in the same grow tray, plant the heavy feeders at the beginning (top) end of the tray and furthest from your fish tank, where the water flows into your grow tray, favoring their pH requirement and the light feeders at the end where the water flows out.

When adding any agent to adjust the pH levels in your system, allow several hours, and better yet, monitor your system over a day or two before trusting the testing medium results.

Testing can be done with simple swimming pool test strips or with sophisticated scientific instruments that have been designed for the task. Both work very well and if you use both, be prepared to have two very different readings. What you are looking for is consistency using one method. Using both is confusing and makes adjusting the water much harder. (We know from experience . . .)

 

We use a Microprocessor Conductivity & TDS Meters with Automatic Temperature Compensation with Automatic Calibration to check the water in our systems.

If you are trying to grow vegetables with very different pH requirements in the same grow tray, plant the heavy feeders at the beginning (top) end of the tray and furthest from your fish tank, where the water flows into your grow tray, favoring their pH requirement and the light feeders at the end where the water flows out.

We do not grow ‘blooming plants’ (tomatoes, peppers, zucchini, green beans, cucumbers, etc.) in the same tray as non-bloom plants (lettuces and green leafy plants such as Swiss chard, all types of lettuces, basil, herbs, etc.). Each of these categories (blooming vs. non-blooming plants have their own grow trays so we can closely monitor the pH level to adapt for ideal pH levels for each variety.

For example, tomatoes, peppers and cucumbers are all flowering plants and prefer a more alkaline water. Lettuce, basil, Swiss chard and or green leafy plants are much happier in a slightly acidic solution. Having these plants in separate trays allows you to adjust the pH in your system to make the plants more productive with creates much less work on your part. It also reduces issues related to leaf curling.

If the pH gets too near or above 7.2 in your Portable Farms® Aquaponics System, you plants cannot absorb the nutrients in the system and creates a NUTRIENT SHUTDOWN and your plants will begin to wither, show systems of leaf curl, begin to yellow, have stunted growth and not produce growth or blossoms. In effect, the plants are starving to death.

The Portable Farms® Aquaponics Systems are designed to accomplish this adjustment in an extremely easy manner. Checking the pH in your system at least a couple of times per week is vital, especially as the vegetables approach harvest time; this is an inexpensive process to increase production in the grow trays. This simple checking and adjustment will result in more bountiful harvests of healthy and nutritious produce. LEARN FROM US: CLICK HERE.

4 comments

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  1. Michael

    In your videos and pictures of your grow trays-you mention a grow tray is used for each plant. One tray for lettuce, another for tomatoes, another for green beans etc..

    My understanding is that the water in your system comes from the fish pond-therefore it is using the nutrients in the water (a single water source). How does one balance the PH for each tray(different plant) when the water source is the same?

    In closing I would like to say I find your systems very fascinating!

    Respectfully,
    Michael

    1. portfarms

      Michael,

      The Grow Tray Tables can be planted with any plants that you want to eat and as long as you make sure the tall plants are not shading the shorter plants they all will grow fine. We do not use ponds, we use Fish Tanks and there is one Fish Tank per Grow Table. There is never a common sources of fish water except in the case of a single Module installation.

      Interestingly the pH adjustments are rarely a problem. Once the initial pH is established and the make up water is adjusted for, the pH will remain within a very close range. Each Grow Tray will tend to be incredibly stable in relationship to the pH level. We have gone months without even checking the pH is many of our systems because they very so little.

      We trust this information helps in some fashion.

      Colle Davis – Inventor

  2. john

    questions, how can I reduce the PH from my tilapia pond that will not hurt my fish and keep it organic raise tilapia and pls. advice. Thank you

    1. portfarms

      John,

      We offer Aquaponics Coaching to cover topics such as this. The notice below is on many of our webpages:

      Expert Advice for ANY Aquaponics System Currently in Operation

      Do you own an aquaponics system that doesn’t work right? Are you ready for some REAL expert help to give you quick advice to make your system work correctly and produce healthy fish and vegetables?

      We know. You did everything ‘they’ told you to do. You followed all their instructions and you’re system STILL doesn’t work right.

      Call today to book 30 minutes of Aquaponics Coaching to get all your questions answered with Colle Davis, the inventor of Portable Farms™ Aquaponics Systems (patent pending).

      Cost: $100 for 30 minutes of phone coaching. Write up your questions now and call us. Payment by PayPal, Visa, MasterCard or Discover Card. Call to book your appointment: 760-208-2663. EMAIL.

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